The intramolecular 5-exo, 7-endo-dig transition metal-free cyclization sequence of (2-alkynylphenyl) benzyl ethers: synthesis of seven-membered fused benzo[b]furans
作者:Rafaela Gai、Roberto do Carmo Pinheiro、José S. S. Neto、Bernardo A. Iglesias、Thiago V. Acunha、Davi F. Back、Gilson Zeni
DOI:10.1039/c6gc02423h
日期:——
Base-promoted cyclization of (2-alkynylphenyl) benzyl ethers was studied in details. The effects of solvent, base, temperature, reaction time and amount of base on the efficacy of the cyclization reaction was...